AC on idle issues

[87chevy.com]

Originally Posted by Accelo

Thanks for the input.
I should have mentioned the air is a Vintage Air setup and is difficult to integrate with the stock ECM as it has it's own. I will see if I can identify the pin for the 12V input and add it as an input from the clutch. I have since had a bad tune rectified and will see what difference that makes. One would believe if an idle speed is specified the ECM would just attempt to keep the correct idle speed no mater what the load is. However, I acknowledge the AIR input it wasn't added as a whim.
Thanks

what do you mean, it has its own? the vintage air just gives 12v to compressor yes, is that what the facotry GM ecu needs? then send that 12v to the ecu and wire the a/c circuit like factory.... just that easy